Oil field carbon dioxide driving extraction gas carbon dioxide separating recovery system

The invention provides an oil field carbon dioxide driving extraction gas carbon dioxide separating recovery system. The oil field carbon dioxide driving extraction gas carbon dioxide separating recovery system comprises an oil gas separating tower, a first compressor, a cooler, a condensation filter, a heat exchanger, an activated carbon adsorption bed, a particle filter, a heater, a second compressor and a membrane separation device. According to the oil field carbon dioxide driving extraction gas carbon dioxide separating recovery system, on basis of arrangement of the oil gas separating tower, the first compressor, the cooler, the condensation filter, the heater exchanger, the activated carbon adsorption bed, the particle filter, the heater, the second compressor and the membrane separation device, carbon dioxide gas coarse-fine separation from high carbon dioxide concentration extraction gas can be achieved, and the system is suitable for single well extraction gas carbon dioxide separation and applied to separating recovery of carbon dioxide in oil field small and medium-scale extraction gas.